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Sensor-cloud was introduced to create a cloud environment where a geographically distributed pool of sensors (physical or logical) and cloud resources can be shared between numerous applications. In addition, sensor-cloud hides the complexity and heterogeneity of underlying physical/logical sensors from applications. Based on the applications' requirements, the sensor-cloud creates virtual sensors...
Mobile data offloading using Wi-Fi hotspots is increasingly utilized as it satisfies the huge traffic demand and boosts network capacity. For that reason, several studies have been carried out to define the best approaches to offload IP flows from LTE to Wi-Fi. In this paper, we investigate the offload optimization problem from an LTE-A network to Wireless Mesh network (WMN) owned by the operator...
We daily add more devices and services into existing intelligent home networks. Consequently, various networking standards evolutions being experienced world over have not left home networks behind. These evolutions results in competition and depletion of the available limited resources. Consumers therefore, experience unavailable, unreliable and poor performing network both locally and remotely....
Enabling an acceptable QoS provision for realtime services is constrained by the lack of radio resources availability and the load network. To overcome this issue, an efficient admission control must be applied to provide user's QoS expectation while respecting the resource availability constraint. We propose in this paper different admission control strategies aiming at simultaneously improving the...
The topic of this paper is to propose a new network design algorithm which defines an efficient multi-path routing scheme in an MLPS network. Our goal is to offer QoS guarantees for delay and jitter which are considered as important performance metrics for interactive and real time services. To this end, we have formulated several nonlinear objective functions for determining network link utilization...
In this paper, we investigate power efficient resource allocation for the uplink of LTE networks under delay Quality-of-Service (QoS) constraints. We formulate the resource allocation problem as the minimization of sum power in the uplink under statistical delay QoS provisioning, which is complicated due to the specific constraints of SC-FDMA (uplink air interface in LTE networks). We solve the problem...
Smart Grid (SG), designed to integrate high-speed, reliable, and secure data communication networks to manage the complex power systems effectively and intelligently, uses two-way flows of electricity and information to create a widely distributed automated energy delivery network. One of the main challenges of SGs is routing optimization that the data transmission of power price must be equipped...
In this paper, we investigate the problem of finding optimal path in a multicast tree that minimizes the energy consumption and also satisfies the quality-of-service (QoS) requirement of the application. Delay and packet loss probability are important QoS requirement for audio and video transmission. One approach for minimizing the energy consumption is power control. Transmission power control uses...
In this paper, we study Network Coding (NC) at switching level. We use a novel NC algorithm to select, among received packets, those to be coded and released into the network. The selection is based on address correlation and QoS is attained based on delay optimization. The main feature of our algorithm is that it enhances the coding decision and guarantees decodability of transmitted packets. We...
In this paper, we propose a new intersection-based geographical routing protocol, called delay tolerant routing protocol (DTRP) that adapts to the changes in the local topology within city environments. DTRP is based on an effective selection of road intersections through which a packet must pass to reach the gateway to the Internet. The selection, in such delay tolerant VANETs, is made in a way that...
The key challenges of the QoS-oriented satellite MAC technology are conditioned mainly by long-delay space medium. They represent phenomena of MAC's performance degradation (ldquotime barrierrdquo) and dynamical instability (ldquodynamic barrierrdquo) which appear when the propagation time increases. The delay-tolerant MACs should guarantee an effective overcoming of both barriers. We showed that...
Backbone wireless mesh networking concept has been developed in order to provide higher bandwidth, better QoS (less delay and jitter) and larger coverage range compared with previous network types. These factors should be balanced in an appropriate way in order to satisfy mentioned goals. In this paper an optimization framework has been proposed in order to maximize throughput according to upper bound...
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